GRAHAM AUDIO LS5/5   BBC STUDIO MONITOR  1967

Ενα εξαιρετικο Ηχειο του BBC , το LS5/5 STUDIO MONITOR . 3 δρομων με 12`` Woofer , 8`` Midrange και Tweeter 25 mm Υφασματινου θολου . Δινει μαθηματα Υψηλης Πιστοτητας σε πολλαπλασιας αξιας Ηχεια .Σχεδιασμενο απο Team Μηχανικων του BBC το 1967 για Monitor στις Ηχογραφησεις που κανανε. Η GRAHAM AUDIO αναβιωσε αυτο το σπανιο & περιζητητο Ηχειο με εξαιρετικη ποιοτητα κατασκευης .Mεγαλοπρεπης Ηχος , τεραστιο τρισδιαστατο Soundstage .Eξαιρετικα μεσαια με Αρμονικες και αψογα μικρο-μακροδυναμικα με Αποσβεση. Εξαιρετικα `πλαστικα`  Μπασσα  και μεσοχαμηλα . Πυκνοτητα Μουσικης που σε βαζει μεσα στο Studio Ηχογραφησης.         
                                                              
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BBC LS5/5

The BBC LS5/5 is a large three way monitor designed in 1967.A 12 inch drive unit handles the low frequencies up to 400Hz. At this point, an 8 inch midrange takes over before handing over to the 1 inch soft dome tweeter at 3.5kHz. Overall, the frequency response is flat to within ±2dB from 40Hz to 20kHz.
Straight away you'll notice that the bass and midrange drivers are mounted behind slots on the front panel. This feature is highly unusual today, but it works to control the off-axis response of the drive units which results in a smoother response through the crossover regions in typical listening environments. Not surprisingly, we get a lot of questions about this, so we have written an in-depth article explaining how the slots work.
Naturally, this is a BBC "thinwall" cabinet, where the relatively thin panels are mass-loaded to ensure that resonances are moved away from the mid-range region, and Rockwool provides air damping. Hand-matched veneers are applied and finished to a very high standard. The grille is carefully designed to minimise diffraction effects and is held in place by concealed rare-earth magnets.

Specifications :
System
3 Way, reflex loading
Enclosure
Thin wall damped construction
Finish
Real wood veneer
Dimensions (w/h/d)
36cm  x 70cm x 48cm
Weight
35.5kg
Frequency response
40Hz to 20kHz, ±2dB
Nominal impedance
Sensitivity
88dB SPL (2.83V, 1m)
Maximum output
Over 104dB for a pair at 2m
Bass
300mm Long throw
Midrange
200mm
Tweeter
25mm Soft dome tweeter
Recommended amplifier power
50 to 200 watts unclipped programme

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